Features of guides and surgical implements, which may be utilized together in various assemblies, are disclosed. Surgical implements or other devices within the scope of this disclosure may include a circumferentially grooved knob. The knob may be configured to receive a portion of a guide. Further, a clip may be configured to releasably secure the guide to the surgical implement. The clip may be coupled to the knob, for example, by a strap rotatably coupled to the knob. The knob may also define a stop-ledge configured as an abutment for the guide. The knob may also define a central passageway, which may also be surrounded by a hollow hub, for receiving an additional surgical implement or device.